<script setup lang="ts">
import { OrderState } from '@/api/order';
import { OrderListResult, getOrderList } from '@/api/order';
import { onLoad } from '@dcloudio/uni-app';
import { ref } from 'vue';
// 选项卡下标
const activeIndex = ref(0);
// 点击 tabs 时
const changeTab = (index: number) => {
  activeIndex.value = index;
  loadOrderList();
};
// 轮播切换，触发的事件
const swiperChange = (ev: WechatMiniprogram.SwiperChange) => {
  // 修改选项卡下标
  activeIndex.value = ev.detail.current;
};
const orderList = ref<OrderListResult[]>([
  // 全部
  {
    title: '全部',
    orderState: 0,
    items: [],
    counts: 0,
    page: 1,
    pageSize: 10,
    pages: 1,
  },
  // 待付款
  {
    title: '待付款',
    orderState: 1,
    items: [],
    counts: 0,
    page: 1,
    pageSize: 10,
    pages: 1,
  },
  // 待发货
  {
    title: '待发货',
    orderState: 2,
    items: [],
    counts: 0,
    page: 1,
    pageSize: 10,
    pages: 1,
  },
  // 待收货
  {
    title: '待收货',
    orderState: 3,
    items: [],
    counts: 0,
    page: 1,
    pageSize: 10,
    pages: 1,
  },
  // 待评价
  {
    title: '待评价',
    orderState: 4,
    items: [],
    counts: 0,
    page: 1,
    pageSize: 10,
    pages: 1,
  },
]);
const loadOrderList = async () => {
  let currentData = orderList.value[activeIndex.value];
  const res = await getOrderList({
    page: currentData.page,
    pageSize: 10,
    orderState: currentData.orderState as OrderState,
  });
  res.title = currentData.title;
  res.orderState = currentData.orderState;
  // orderList.value[activeIndex.value] = res;
  // 页数加一
  orderList.value[activeIndex.value].page++;
  // 累加数据
  orderList.value[activeIndex.value].items.push(...res.items);
  // 更新总条数
  orderList.value[activeIndex.value].counts = res.counts;
};
onLoad(() => {
  loadOrderList();
});
// 触底事件
const onScrolltolower = () => {
  // 列表长度 === 总条数 return
  if (
    orderList.value[activeIndex.value].items.length >=
    orderList.value[activeIndex.value].counts
  )
    return;
  loadOrderList();
};
</script>

<template>
  <view class="viewport">
    <!-- tabs 选项卡 -->
    <view class="tabs">
      <text
        v-for="(item, index) in orderList"
        :key="index"
        @tap="changeTab(index)"
        >{{ item.title }}</text
      >
      <!-- 游标 -->
      <view
        class="cursor"
        :style="{ left: `calc(${activeIndex} * 20%)` }"
      ></view>
    </view>
    <!-- 订单列表 -->
    <swiper
      class="orders"
      :duration="400"
      :current="activeIndex"
      @change="swiperChange"
    >
      <!-- 全部订单 -->
      <swiper-item v-for="item in orderList" :key="item.orderState" item-id="0">
        <scroll-view
          @scrolltolower="onScrolltolower"
          enhanced
          scroll-y
          :show-scrollbar="false"
        >
          <view v-for="order in item.items" :key="order.id" class="card">
            <!-- 订单相关 -->
            <view class="status">
              <text class="date">{{ order.createTime }}</text>
              <text>{{ OrderState[order.orderState] }}</text>
              <text class="icon-delete"></text>
            </view>
            <!-- 商品信息 -->
            <navigator
              v-for="goods in order.skus"
              class="goods"
              url="/pages/order/detail"
              hover-class="none"
            >
              <view class="cover">
                <image :src="goods.image"></image>
              </view>
              <view class="meta">
                <view class="name ellipsis">{{ goods.name }}</view>
                <view class="type">{{ goods.attrsText }}</view>
              </view>
            </navigator>
            <!-- 支付信息 -->
            <view class="payment">
              <text class="quantity">共{{ order.totalNum }}件商品</text>
              <text>实付</text>
              <text class="amount">
                <text class="symbol">¥</text>{{ order.totalMoney }}
              </text>
            </view>
            <!-- 订单操作 -->
            <view class="action">
              <view class="button primary">再次购买</view>
              <view class="button">取消订单</view>
            </view>
          </view>
          <view class="scrollText">{{
            orderList[activeIndex].items.length < orderList[activeIndex].counts
              ? '数据加载中...'
              : '没有更多了'
          }}</view>
        </scroll-view>
      </swiper-item>
    </swiper>
  </view>
</template>

<style>
page {
  height: 100%;
  overflow: hidden;
}

.viewport {
  height: 100%;
  display: flex;
  flex-direction: column;
  background-color: #fff;
}

.tabs {
  display: flex;
  justify-content: space-around;
  line-height: 60rpx;
  margin: 0 10rpx;
  background-color: #fff;
  box-shadow: 0 4rpx 6rpx rgba(240, 240, 240, 0.6);
  position: relative;
  z-index: 9;
}

.tabs text {
  flex: 1;
  text-align: center;
  padding: 20rpx;
  font-size: 28rpx;
  color: #262626;
}

.tabs .cursor {
  position: absolute;
  left: 0;
  bottom: 20rpx;

  display: block;
  content: '';
  width: 20%;
  height: 4rpx;
  padding: 0 50rpx;
  background-clip: content-box;
  background-color: #27ba9b;
  transition: left 0.4s;
}

.orders {
  background-color: #f7f7f8;
}

.orders .card {
  min-height: 100rpx;
  padding: 20rpx;
  margin: 20rpx 20rpx 0;
  border-radius: 10rpx;
  background-color: #fff;
}

.orders .card:last-child {
  padding-bottom: 40rpx;
}

.orders .status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 28rpx;
  color: #999;
  margin-bottom: 15rpx;
}

.orders .status .date {
  color: #666;
  flex: 1;
}

.orders .status .primary {
  color: #ff9240;
}

.orders .status .icon-delete {
  line-height: 1;
  margin-left: 10rpx;
  padding-left: 10rpx;
  border-left: 1rpx solid #e3e3e3;
}

.orders .goods {
  display: flex;
  margin-bottom: 20rpx;
}

.orders .goods .cover {
  width: 170rpx;
  height: 170rpx;
  margin-right: 20rpx;
  border-radius: 10rpx;
  overflow: hidden;
  position: relative;
}

.orders .goods .quantity {
  position: absolute;
  bottom: 0;
  right: 0;
  line-height: 1;
  padding: 6rpx 4rpx 6rpx 8rpx;
  font-size: 24rpx;
  color: #fff;
  border-radius: 10rpx 0 0 0;
  background-color: rgba(0, 0, 0, 0.6);
}

.orders .goods .meta {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.orders .goods .name {
  height: 80rpx;
  font-size: 26rpx;
  color: #444;
}

.orders .goods .type {
  line-height: 1.8;
  padding: 0 15rpx;
  margin-top: 10rpx;
  font-size: 24rpx;
  align-self: flex-start;
  border-radius: 4rpx;
  color: #888;
  background-color: #f7f7f8;
}

.orders .goods .more {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22rpx;
  color: #333;
}

.orders .payment {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  line-height: 1;
  padding: 20rpx 0;
  text-align: right;
  color: #999;
  font-size: 28rpx;
  border-bottom: 1rpx solid #eee;
}

.orders .payment .quantity {
  font-size: 24rpx;
  margin-right: 16rpx;
}

.orders .payment .amount {
  color: #444;
  margin-left: 6rpx;
}

.orders .payment .symbol {
  font-size: 20rpx;
}

.orders .action {
  display: flex;
  flex-direction: row-reverse;
  justify-content: flex-start;
  padding-top: 20rpx;
}

.orders .action .button {
  width: 200rpx;
  height: 60rpx;
  text-align: center;
  line-height: 60rpx;
  margin-left: 20rpx;
  border-radius: 60rpx;
  border: 1rpx solid #ccc;
  font-size: 26rpx;
  color: #444;
}

.orders .action .primary {
  color: #27ba9b;
  border-color: #27ba9b;
}

.orders .blank {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  font-size: 30rpx;
  margin-top: -40rpx;
  color: #666;
}
.scrollText {
  padding-top: 10px;
  padding-bottom: 15px;
  font-size: 30rpx;
  color: #666;
  display: flex;
  justify-content: center;
}
</style>
